A continuous drying device for quick-burning briquettes using waste heat

Abstract

The utility model discloses a kind of quick-burning carbon block waste heat utilization type continuous drying device, it is related to carbon block drying device technical field, including machine body, the top of the inside of machine body is fixedly connected with heating frame, the bottom of heating frame is installed with heating pipe, the inside of machine body is installed with mesh belt conveyor, the side of machine body top is provided with waste heat recovery mechanism, and waste heat recovery mechanism's air outlet is connected with air outlet pipe, the air outlet pipe is arranged in the inside of machine body. The quick-burning carbon block waste heat utilization type continuous drying device is through dynamic hot air drying and the double structure of synchronous in-out material cooperation, solve the pain point that traditional device drying efficiency is low, carbon block is unevenly heated, drying is not continuous, waste heat is recovered and is dynamically air out by movable air outlet pipe, cover carbon block upper and lower surface, motor linkage closure plate synchronous switch, realize drying carbon block export and the carbon block to be dried import synchronization, double structure gives consideration to drying uniformity and continuity, substantially improve drying efficiency and carbon block quality.

Description

Technical Field

[0001] This utility model relates to the technical field of charcoal block drying devices, specifically a continuous drying device for quick-burning charcoal blocks that utilizes waste heat. Background Technology

[0002] The waste heat recovery continuous drying device for quick-burning charcoal blocks is a specialized equipment for the carbon industry that addresses pain points in quick-burning charcoal block production, such as "high drying energy consumption, waste of calcination waste heat, and discontinuous traditional drying." It integrates waste heat recovery, continuous conveying, precise temperature control, and dust-free drying. Its core is to introduce the waste heat generated during the calcination of quick-burning charcoal blocks into the drying system after purification, and to achieve automated drying of quick-burning charcoal block green / wet charcoal in conjunction with the continuous conveying mechanism.

[0003] For example, the utility model disclosed in CN223192003U discloses a waste heat drying device for resin anode carbon blocks. By using slides, pulleys and connecting mechanisms to connect multiple movable plates and allow them to slide inside the chamber, it is easy to send the dried resin anode carbon blocks in and out. Different numbers of movable plates can be used according to the length of the chamber in different locations to increase drying efficiency. At the same time, the use of sealing components at the chamber door can seal the inside of the chamber when the door is closed, thereby increasing the temperature inside the chamber during drying, which is beneficial to the drying of resin anode carbon blocks.

[0004] In the above-mentioned drying device, waste heat airflow is sent into the heating tube when drying charcoal blocks, and the heat generated by the heating tube dries the charcoal blocks. However, this drying method lacks airflow participation and has low drying efficiency. Some existing technologies introduce hot air into the drying device through air ducts to dry the charcoal blocks. However, since the air ducts are fixed, the airflow is difficult to completely cover the charcoal blocks, and the bottom of the charcoal blocks is difficult to contact the hot airflow, resulting in uneven drying. Utility Model Content

[0005] The purpose of this invention is to provide a continuous drying device for quick-burning charcoal blocks that utilizes waste heat, in order to solve the problem mentioned in the background art. In the prior art, the drying device sends waste heat airflow into the heating tube when drying charcoal blocks, and then the heat generated by the heating tube dries the charcoal blocks. However, this drying method lacks airflow participation, resulting in low drying efficiency. Some prior art introduces hot air into the drying device through air ducts to dry the charcoal blocks. However, since the air ducts are fixed, the airflow cannot completely cover the charcoal blocks, and the bottom of the charcoal blocks cannot contact the hot airflow, thus causing uneven drying.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a continuous drying device for quick-burning charcoal blocks utilizing waste heat, comprising a machine body, a heating frame fixedly connected to the top of the machine body, a heating pipe installed at the bottom of the heating frame, and a mesh belt conveyor installed inside the machine body; a waste heat recovery mechanism is provided on one side of the top of the machine body, and an air outlet pipe is connected to the air outlet of the waste heat recovery mechanism, the air outlet pipe is located inside the machine body, and guide mechanisms are provided at both ends of the air outlet pipe, the guide mechanisms including guide rods at both ends of the air outlet pipe, and a toggle mechanism for moving the air outlet pipe is provided at the top of the machine body; and a closing mechanism is provided at both ends of the machine body.

[0007] Furthermore, the waste heat recovery mechanism includes an induced draft fan fixedly connected to one side of the top of the machine body, a recovery pipe connected to one side of the induced draft fan, and a filter box connected to the other side of the induced draft fan via a pipe.

[0008] Furthermore, a diversion pipe is connected to one side of the filter box, the bottom of the filter box is fixed to the top of the machine body, a metal corrugated pipe is connected to the bottom of the diversion pipe, and one end of the metal corrugated pipe is connected to the air outlet pipe.

[0009] Furthermore, the actuating mechanism includes a hydraulic rod fixedly connected to the top of the machine body, and a connecting frame fixedly connected to the bottom of the hydraulic rod.

[0010] Furthermore, both ends of the connecting frame are fixedly connected to a lever frame, and the inner side of the lever frame is rotatably connected to a rolling shaft via a rotating shaft.

[0011] Furthermore, both ends of the guide rod are fixedly connected to a fixing rod, one end of which is fixed to the inner side of the machine body, and the guide rod is arc-shaped.

[0012] Furthermore, both ends of the air outlet pipe are fixedly connected to fixing blocks, and the interior of the fixing blocks is provided with through grooves for the guide rod to slide.

[0013] Furthermore, the sealing mechanism includes a discharge port opened at one end of the machine body near the induced draft fan, and a sealing plate a is rotatably connected to the inner side of the discharge port via a rotating shaft. A feed port is opened on the side of the machine body away from the discharge port, and a sealing plate b is rotatably connected to the inner side of the feed port via a rotating shaft.

[0014] Furthermore, a synchronous pulley a is fixedly connected to one side of the closed plate b, a motor is fixedly connected to one side of the synchronous pulley a, and one side of the motor is fixed to the machine body by a bracket.

[0015] Furthermore, a timing belt is sleeved on the outer side of the timing pulley a, and a timing pulley b is sleeved on one side of the timing belt. One side of the timing pulley b is fixed to the closing plate a.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This fast-burning charcoal block waste heat utilization continuous drying device solves the pain points of low drying efficiency, uneven heating of charcoal blocks, and discontinuous drying of traditional devices by using dynamic hot air drying and synchronous feeding and discharging dual structures in synergy. After waste heat is recovered, air is dynamically discharged through a movable air outlet pipe, covering the upper and lower surfaces of the charcoal blocks. The motor is linked to the synchronous opening and closing of the sealing plate, realizing the synchronous discharge of dried charcoal blocks and the introduction of charcoal blocks to be dried. The dual structure takes into account both drying uniformity and continuity, greatly improving drying efficiency and charcoal block quality.

[0017] 1. The dynamic hot air drying structure effectively solves the problems of fixed air ducts and uneven heating of charcoal blocks in traditional devices, improving drying uniformity and efficiency. The induced draft fan recovers flue gas from the external combustion furnace, which is purified by the filter box and sent into the outlet air duct through the diversion pipe. The hydraulic rod drives the actuating frame to move up and down, pushing the outlet air duct to slide along the arc-shaped guide rod, so that the air outlet can be switched to face the mesh belt, diagonally upward, diagonally downward, etc. The hot air can blow on the top of the charcoal blocks and also pass through the mesh belt to act on the bottom, achieving all-round coverage drying, avoiding local undried conditions, and improving the consistency of charcoal block moisture content.

[0018] 2. The synchronous feeding and discharging structure precisely solves the problems of discontinuous drying and the need to stop to change materials in traditional equipment, improving production efficiency. After the charcoal blocks are dried, the motor drives the synchronous wheel a to rotate, which in turn drives the synchronous wheel b via the synchronous belt, causing the closed plate a and the closed plate b to rotate counterclockwise synchronously and tilt. After the mesh belt conveyor starts, the dried charcoal blocks are smoothly discharged through the closed plate a, while the charcoal blocks to be dried are simultaneously fed into the mesh belt through the closed plate b. Material replacement can be completed without stopping the machine, realizing continuous drying operation, greatly shortening the production cycle, and adapting to the needs of large-scale production. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the mesh belt conveyor of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the heating rack of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the guide rod of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the toggle frame of this utility model.

[0025] In the diagram: 1. Machine body; 2. Heating frame; 3. Exhaust fan; 4. Filter box; 5. Diverter pipe; 6. Air outlet pipe; 7. Hydraulic rod; 8. Connecting frame; 9. Actuating frame; 10. Guide rod; 11. Fixing rod; 12. Fixing block; 13. Mesh belt conveyor; 14. Enclosure plate a; 15. Enclosure plate b; 16. Motor; 17. Synchronous pulley a; 18. Synchronous belt; 19. Synchronous pulley b; 20. Rolling shaft. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figures 1-3 This utility model provides the following technical solution: a continuous drying device for quick-burning charcoal blocks using waste heat utilization, comprising a body 1, a heating rack 2 fixedly connected to the top of the inner side of the body 1, a heating pipe installed at the bottom of the heating rack 2, and a mesh belt conveyor 13 installed inside the body 1; a waste heat recovery mechanism is provided on one side of the top of the body 1, and an air outlet pipe 6 is connected to the air outlet of the waste heat recovery mechanism, the air outlet pipe 6 is located inside the body 1, and guide mechanisms are provided at both ends of the air outlet pipe 6, the guide mechanisms including guide rods 10 at both ends of the air outlet pipe 6, and a toggle mechanism for moving the air outlet pipe 6 is provided on the top of the body 1; when drying charcoal blocks, this continuous drying device for quick-burning charcoal blocks using waste heat utilization can send the charcoal blocks onto the mesh belt conveyor 13, and then start the heating rack 2 to heat the charcoal blocks at the bottom, while simultaneously recovering the flue gas generated by the external combustion furnace through the waste heat recovery mechanism to air dry the charcoal blocks inside.

[0028] Please see Figures 1-3 The waste heat recovery mechanism includes an induced draft fan 3 fixedly connected to one side of the top of the main body 1. A recovery pipe is connected to one side of the induced draft fan 3, and a filter box 4 is connected to the other side of the induced draft fan 3 through a pipe. A diversion pipe 5 is connected to one side of the filter box 4. The bottom of the filter box 4 is fixed to the top of the main body 1. A metal corrugated pipe is connected to the bottom of the diversion pipe 5, and one end of the metal corrugated pipe is connected to the air outlet pipe 6. The induced draft fan 3 will guide the flue gas from the external combustion furnace into the filter box 4 to filter the dust in the flue gas. The filtered flue gas will enter the diversion pipe 5 and be diverted to two sets of air outlet pipes 6.

[0029] Please see Figure 2 , Figure 5 and Figure 6The actuation mechanism includes a hydraulic rod 7 fixedly connected to the top of the body 1, and a connecting frame 8 fixedly connected to the bottom of the hydraulic rod 7; both ends of the connecting frame 8 are fixedly connected to actuating frames 9, and the inner side of the actuating frames 9 is rotatably connected to a rolling shaft 20 through a rotating shaft; by activating the hydraulic rod 7, the connecting frame 8 can be driven to move up and down, and the connecting frame 8 will drive the actuating frames 9 at both ends to move synchronously, and the actuating frames 9 will contact the air outlet pipe 6 through the internal rolling shaft 20, thereby actuating the air outlet pipe 6 to move up and down.

[0030] Please see Figures 4-5 Both ends of the guide rod 10 are fixedly connected to the fixing rod 11. One end of the fixing rod 11 is fixed to the inner side of the machine body 1. The guide rod 10 is arc-shaped. Both ends of the air outlet pipe 6 are fixedly connected to the fixing block 12. The fixing block 12 has a through groove for the guide rod 10 to slide. When the air outlet pipe 6 moves, the fixing blocks 12 at both ends will slide on the outside of the arc-shaped guide rod 10. When the air outlet pipe 6 is in the middle position of the guide rod 10, the air outlet will face the top of the mesh belt conveyor 13. When the air outlet pipe 6 moves to the bottom of the guide rod 10, under the action of the guide rod 10, the air outlet on one side of the air outlet pipe 6 will face diagonally upward, so that the hot air passes through the mesh belt conveyor 13 and dries the bottom of the carbon blocks on the mesh belt conveyor 13. When the air outlet pipe 6 moves to the highest point, the air outlet will face diagonally downward, so that the top of the carbon blocks will be dried. In this way, the air outlet pipe 6 can dynamically discharge air, so as to dry the carbon blocks evenly.

[0031] Example 2: Please refer to Figures 1-2 Based on Embodiment 1, a closing mechanism for synchronously opening and closing at both ends of the machine body 1 is also disclosed. Its specific structure is as follows: a closing mechanism is provided at both ends of the machine body 1. The closing mechanism includes a discharge port opened at the end of the machine body 1 near the blower 3, and a closing plate a14 is rotatably connected to the inner side of the discharge port through a rotating shaft. A feed port is opened on the side of the machine body 1 away from the discharge port, and a closing plate b15 is rotatably connected to the inner side of the feed port through a rotating shaft. A synchronous wheel a17 is fixedly connected to one side of the closing plate b15, and a motor 16 is fixedly connected to one side of the synchronous wheel a17. One side of the motor 16 is fixed to the machine body 1 through a bracket. A synchronous belt 18 is sleeved on the outer side of the synchronous wheel a17, and a synchronous wheel b19 is sleeved on one side of the synchronous belt 18. One side of the synchronous wheel b19 is fixed to the closing plate a14.

[0032] Please see Figures 1-2This continuous drying device for quick-burning charcoal blocks utilizes waste heat. After a group of charcoal blocks is dried, the motor 16 can be started to drive the synchronous wheel a17 to rotate counterclockwise. The synchronous wheel a17 will drive the synchronous wheel b19 to rotate synchronously through the synchronous belt 18. The synchronous wheels a17 and b19 will drive the sealing plate b15 and sealing plate a14 to rotate counterclockwise, so that the top of the sealing plate b15 contacts the top of one side of the mesh belt conveyor 13 and is inclined, while the bottom of the sealing plate a14 contacts the bottom of one side of the mesh belt conveyor 13 and is inclined. At this time, the mesh belt conveyor 13 can be started to move. The mesh belt conveyor 13 will export the dried charcoal blocks through the inclined sealing plate a14, while the charcoal blocks to be dried can be introduced into the other end of the mesh belt conveyor 13 through the inclined sealing plate b15, thereby performing continuous drying.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous drying device for quick-burning charcoal blocks with waste heat utilization, comprising a machine body (1), a heating rack (2) fixedly connected to the top of the inner side of the machine body (1), a heating pipe installed at the bottom of the heating rack (2), and a mesh belt conveyor (13) installed inside the machine body (1). Its features are: A waste heat recovery mechanism is provided on one side of the top of the body (1), and an air outlet pipe (6) is connected to the air outlet of the waste heat recovery mechanism. The air outlet pipe (6) is located inside the body (1), and a guide mechanism is provided at both ends of the air outlet pipe (6). The guide mechanism includes guide rods (10) provided at both ends of the air outlet pipe (6). A toggle mechanism for moving the air outlet pipe (6) is provided on the top of the body (1). The two ends of the body (1) are provided with a sealing mechanism.

2. The continuous drying device for quick-burning charcoal blocks utilizing waste heat according to claim 1, characterized in that: The waste heat recovery mechanism includes an induced draft fan (3) fixedly connected to one side of the top of the body (1), a recovery pipe connected to one side of the induced draft fan (3), and a filter box (4) connected to the other side of the induced draft fan (3) through a pipe.

3. The continuous drying device for quick-burning charcoal blocks utilizing waste heat according to claim 2, characterized in that: A diversion pipe (5) is connected to one side of the filter box (4). The bottom of the filter box (4) is fixed to the top of the body (1). A metal corrugated pipe is connected to the bottom of the diversion pipe (5), and one end of the metal corrugated pipe is connected to the air outlet pipe (6).

4. The continuous drying device for quick-burning charcoal blocks utilizing waste heat according to claim 1, characterized in that: The actuating mechanism includes a hydraulic rod (7) fixedly connected to the top of the body (1), and a connecting frame (8) fixedly connected to the bottom of the hydraulic rod (7).

5. A continuous drying device for quick-burning charcoal blocks utilizing waste heat according to claim 4, characterized in that: Both ends of the connecting frame (8) are fixedly connected to a lever frame (9), and the inner side of the lever frame (9) is rotatably connected to a rolling shaft (20) via a rotating shaft.

6. The continuous drying device for quick-burning charcoal blocks utilizing waste heat according to claim 1, characterized in that: Both ends of the guide rod (10) are fixedly connected to a fixing rod (11). One end of the fixing rod (11) is fixed to the inner side of the body (1). The guide rod (10) is arc-shaped.

7. The continuous drying device for quick-burning charcoal blocks utilizing waste heat according to claim 1, characterized in that: Both ends of the air outlet pipe (6) are fixedly connected to a fixing block (12), and the inside of the fixing block (12) is provided with a through groove for the guide rod (10) to slide.

8. A continuous drying device for quick-burning charcoal blocks utilizing waste heat according to claim 1, characterized in that: The sealing mechanism includes a discharge port opened at one end of the body (1) near the blower (3), and a sealing plate a (14) is rotatably connected to the inner side of the discharge port via a rotating shaft. A feed port is opened on the side of the body (1) away from the discharge port, and a sealing plate b (15) is rotatably connected to the inner side of the feed port via a rotating shaft.

9. A continuous drying device for quick-burning charcoal blocks utilizing waste heat according to claim 8, characterized in that: A synchronous pulley a (17) is fixedly connected to one side of the closed plate b (15), and a motor (16) is fixedly connected to one side of the synchronous pulley a (17). One side of the motor (16) is fixed to the machine body (1) through a bracket.

10. A continuous drying device for quick-burning charcoal blocks utilizing waste heat according to claim 9, characterized in that: A timing belt (18) is sleeved on the outside of the timing pulley a (17), and a timing pulley b (19) is sleeved on one side of the timing belt (18). One side of the timing pulley b (19) is fixed to the closing plate a (14).

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